Fluid pump



FIG. 1 is a perspective view taken from the top, front and right end of a fluid pump, showing our new design;

FIG. 2 is a perspective view taken from the top, rear and left end thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a front elevational view thereof; and

FIG. 6 is a right end view thereof. 

The ornamental design for a fluid pump, substantially as shown and described. 